code: def test_1_native_query_show_keyspaces(self):
      dbs = self.handler.native_query("DESC KEYSPACES;")
      assert dbs.type is not RESPONSE_TYPE.ERROR
  
file_path: mindsdb/mindsdb/integrations/handlers/cassandra_handler/tests/test_cassandra_handler.py
imports: import unittest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.integrations.handlers.cassandra_handler.cassandra_handler import CassandraHandler
label_desc: Use image node_id 3 for calling the CassandraHandlerTest obj's underlying member method code with example usage: obj.test_1_native_query_show_keyspaces() without return types